Which AI models can the Apple M3 Ultra (256GB) run?

Every model we track, checked against the Apple M3 Ultra (256GB) at 8K context. The largest that runs well is DeepSeek V4 Flash 284B-A13B.

Unified memory256 GB192 GB usable by the GPU
Bandwidth819GB/s
Runs well60/69models at Q4_K_M or better
Fastest model~328tok/s · Qwen3 0.6B

Every model on the Apple M3 Ultra (256GB)

Bars show memory used out of 192 GB. Pick a row for the full breakdown.

60 Runs well

NameMemory usedBest quantSpeed

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